US3469429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turn-layers with an edenborn rotating laying tube
Assignee: Schloemann AG
•
Filing: 1967-02-13
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Granted: 1969-09-30
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Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 Otto Dopper
- 👤 Georg Bollig
- 👤 Egbert Schroder
- 👤 Klaus Kuppers
- 👤 Alfred Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/26; B21C47/02; B21C47/10; B21C47/14; B21C47/143; B21C47/262; C; C21; C21D; C21D1/00; C21D1/84; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/573; C21D9/5732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1945898A
Cited
GB889907A
Cited
US3053306A
Cited
US3103237A
Cited
US3167108A
Cited
US3266694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |